Home / 10,221.47-15,336.53-4,380.83

Finding the Fourth Proportional to 10,221.47, 15,336.53 and 4,380.83

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Solution

The fourth proportional to 10,221.47, 15,336.53 and 4,380.83 is: 6,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.47 : 15,336.53 = 4,380.83 : x
  2. Step 2: Convert to fraction form
    10,221.47/15,336.53 = 4,380.83/x
  3. Step 3: Cross multiply
    10,221.47x = 15,336.53 × 4,380.83
  4. Step 4: Simplify right side
    10,221.47x = 67,186,730.72
  5. Step 5: Solve for x
    x = 67,186,730.72/10,221.47
  6. Step 6: Final answer
    x = 6,573.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.